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This article is cited in 5 scientific papers (total in 5 papers)
Biophotonics
Influence of skin surface roughness degree on energy characteristics of light scattered by a biological tissue
V. V. Barun, A. P. Ivanov B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk
Abstract:
We present the results of modelling of photometric characteristics of light in soft tissues illuminated by a parallel beam along the normal to the surface, obtained with allowance for the skin roughness parameters and the angular structure of radiation approaching the surface from within the tissue. The depth structure of the fluence rate and the spectra of the diffuse reflection of light by the tissue in the interval of wavelengths 300 – 1000 nm are considered. We discuss the influence of the tilt angle variance of rough surface microelements and light refraction on the studied characteristics. It is shown that these factors lead to the reduction of the radiation flux only in the near-surface tissue layer and practically do not affect the depth of light penetration into the tissue. On the other hand, the degree of the surface roughness and the conditions of its illumination from within the tissue essentially affect the coefficient of diffuse reflection of light and lead to its considerable growth compared to the cases of a smooth interface and completely diffuse illumination, often considered to simplify the theoretical problem solution. The role of the roughness of skin surface is assessed in application to the solution of different direct and inverse problems of biomedical optics.
Keywords:
rough surface, skin, radiation transport theory, light reflection, refraction.
Received: 13.04.2016 Revised: 13.02.2017
Citation:
V. V. Barun, A. P. Ivanov, “Influence of skin surface roughness degree on energy characteristics of light scattered by a biological tissue”, Kvantovaya Elektronika, 47:4 (2017), 371–377 [Quantum Electron., 47:4 (2017), 371–377]
Linking options:
https://www.mathnet.ru/eng/qe16585 https://www.mathnet.ru/eng/qe/v47/i4/p371
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Abstract page: | 212 | Full-text PDF : | 173 | References: | 32 | First page: | 10 |
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